Jack is 27 years older than Susan. In 5 years time he will be 4 times as old as her find the present ages of Jack and Susan
Answers
Answer 1
Answer:
j=jack's age s=susan's age ok so
jack is 27 years more than susan j=27+s
in 5 years (j+5 and s+5), he (jack in 5 years) will be (=) 4 times as old as hwer (susan in 5 years) j+5=4(s+5)
so we have j=27+s and j+5=4(s+5) subsitute 27+s for j since they are equal 27+s+5=4(s+5)
distribute a(b+c)=ab+ac 4(s+5)=4s+20 so we have
27+s+5=4s+20 add like terms 32+s=4s+20 subtract s from both sides 32=3s+20 subtract 20 from both sides 12=3s divivde 3 4=s subsitute j=27+s j=27+4 j=31
jack is 31 susan is 4
Answer 2
Answer:
Susan present age is 3 because if you add five to 27 you get 32 then you divide it by 4 and you get 8 then you mince 5 because you added it to 27 and you get 3. And Jacks age stays the same. 27 and 3.
It’s finding the area but with more numbers so start from the bottom and work your way up
Find the greatest common factor of 16 and 45
Answers
factor 16 and 45 and find the common ones 16=1*2*2*2*2 45=1*3*3*5
common one is 1 gcf=1
What are the factors of 72 and 96?
Answers
The factors are what the number is divisible by. 72- 1,2,3,4,6,8,9,12,18,24,36,72 96- 1,2,3,4,6,8,12,16, 24, 32, 48, 96
The common factors are 1,2,3,4,6,8,12 and 24. Hope this helps
so the factors are the numbers that make up the number so (exg factors of 6 are 2 and 3) 3*2 means 3 times 2
72=2*2*2*3*3 96=4*4*3*2*2*2
we can see that the common factor is (3*2*2*2 or 24)
The measure of an exterior angle of a triangle is equal to the sum of the measures of what two interior angles
Answers
Answer :
The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.
pls do mark as brainliest. . .
How do you solve equations with rational coefficients?
Answers
You've been doing that all this time and didn't even realize it !
Every plain old number that you ever see is a rational number. Every equation that has plain old numbers next to the variables is an equation with rational coefficients.
If a variable ever has (pi) or a square root or a trig function next to it, then that's an irrational coefficient. But I'll just bet you haven't ever seen any of these yet.